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BETEX TPNon-woven Fabrics

KEY ADVANTAGESat a glance

→ Good adaptability

→ Good mechanical and hydraulic filtration properties

→ Excellent chemical resistance

→ Easy to install

02 | BETEX TP Non-woven Fabrics

The range of applications for non-woven geotextiles in construction is as wide as the

range of structures in which they are used. Non-woven fabrics are the archetypal

geosynthetic. Depending on the structure and composition of the fabric, they can

be used as a filtering, separation and/or protective layer in highway construction,

buildings, civil engineering, gardens and landscaping.

The mode of operation is always similar, but the requirements of different construction

projects can vary considerably.

BETEX TP Non-woven Fabrics

BETEX TP Non-woven Fabrics | 03

Subsoil

Sub-base

BETEX TP Non-woven Fabrics

PRODUCT DETAILS and properties

BETEX TP is a mechanically-bonded staple fibre non-woven geotextile made of polypropylene

(PP). This polymer has high chemical resistance, even to aggressive media such as soils with

a high pH value. The raw material polypropylene is easy to process and, as a result of its high

elasticity, is also extremely flexible without any associated loss in robustness.

BETEX TP Non-woven Fabrics can thus be used to clad even complex shapes to excellent

effect. The exceptionally wide range of BETEX TP Non-woven Fabrics allows them to be used

in practically all types of application.


Protection

The protective function of the fabric can be considered in isolation from the two

functions described above. In this case, the purpose is to protect a structure or

another functional component, such as a sealing membrane, from mechanical

damage. Such protection may be required, for example, when concreting or when

positioning coarse-grain mineral construction materials. Here, BETEX TP Non-woven

Fabrics provide the necessary protection. They can minimise the effects of point

loads and absorb shear forces.

Our BETEX TP Non-woven Fabrics are available in various thicknesses from 2.3 to

12 mm to provide the required level of protection for an extremely wide range of

applications.

Filtration

The filter function of the non-woven fabric must be tailored to the particular

circumstances, depending on the grain mobility within the soil and the influence of

water on the layers to be separated. In simple cases, such as those assumed in M Geok

E StB 2016 (Leaflet on the use of geosynthetics in earthworks for highway construction),

BETEX TP Non-woven Fabrics provide the necessary mechanical and hydraulic filtration.

For more complex applications, the ideal product can be selected from the BETEX TP

product range after determining the filter requirements and taking into account the

characteristic aperture width, the water permeability and possibly also the filtration

length. In general, the functions of separation and filtration complement each other, and

this dual function is often a prerequisite in geotechnical applications.

FUNCTIONSBETEX TP Non-woven Fabrics

Separation

BETEX TP Non-woven Fabrics can be used to separate two different types of soil or

unbound sub-base layers from each other. This separation is extremely important, for

example, in cases where the subgrade soil must be prevented from mixing with a high-

quality sub-base layer. By separating the layers, the quality of the layer structure can

be sustained in the long-term and the useful life of the structure can be optimised.

The separating function of the fabric often means that a blinding layer can be omitted.

Product details / Functions | 05

Drainage layer

for slopes

(perforated pipe)BETEX TP Non-woven Fabric

Topsoil

Seepage water

Free-draining fill material

Drainage pipe

Sealing membrane, if required

Separation and

filtration in traffic

infrastructure

Block paving

Bedding for paving

BETEX TP Non-woven Fabric

Base course

APPLICATIONSBETEX TP Non-woven Fabrics

BETEX TP Non-woven Fabrics are used as separating and filtering layers in situations

where soil and mineral fill materials need to be effectively separated in order to

prevent the migration of particles and the formation of unstable interfaces.


Soil and vegetation


Separation and

filtration layer for

drainage systems Sealing membrane

Free-draining fill material

Drainage pipe

Filter layer

behind gabions


Gabions

Drainage pipe

Backfill material

Applications | 07

Separation and

filtration layer for

green roofs

Vegetation

Substrate

Root-proof membrane


Roof sealing membrane

Drainage membrane


Properties TP 15 TP 17 TP 30 TP 40 TP 50 TP 80

Product type Mechanical bonded nonwoven

Raw material Polypropylene (PP) white

Geotextile robustness class (GRK) 3 3 4 5 5 5

Mass per unit area (g/m2) 150 170 300 400 500 800

Thickness (mm) 2,3 2,6 3,5 4,3 5,0 6,5

Fields of application

Building protection ○ ○ ○

Roof greening ● ● ● ● ● ●

Landfill construction ● ● ● ●

Drainage systems ● ● ● ●

Green areas ● ● ● ● ● ●

Home gardens ● ● ● ● ● ●

Retention basins ○ ○ ○ ○

Reservoirs ○ ○ ○ ○

Ponds ○ ○ ○ ○

Underground car park greening ● ● ● ● ● ●

Road construction ● ● ● ● ● ●

Special types available on request.

We are happy to supply current data sheets,

specifications, certificates and technical

verifications on request.

Tel.: +49 (0) 911 642 00 – 0

Fax: +49 (0) 911 642 00 – 90

Website: www.beco-bermueller.com

Email: [email protected]

● suitable ○ partly suitable (project-related assessment necessary)

Applications matrix at a glance

Applications | 09

INSTALLATION INSTRUCTIONSBETEX TP Non-woven Fabrics

To be considered:

1. The subsoil should be as flat and even as possible in order to ensure full

contact with the fabric across its entire surface.

2. The fabric must be laid flat and free of creases. Creases resulting from

the shape of the structure should be removed by cutting the fabric and

allowing it to overlap like roof shingles.

3. Fill material must be placed on top of the BETEX TP Non-woven Fabric

on the day that the fabric is laid.

4. When filling and compacting material on top of the fabric, care must be

taken to prevent displacement or creasing of the fabric.

Our detailed installation and laying instructions for BETEX TP Non-woven

Fabrics must also be followed.


→ Good mechanical and hydraulic filtration properties

→ Excellent chemical resistance

→ The protective layer can be selected according to the guideline leaflet

→ Robust, to cope with installation conditions on site

→ Malleable and easy to lay

→ Easy to cut to size using a cutter or Stanley knife

BETEX TPADVANTAGES

Installation / Advantages | 11

Bermüller & Co GmbH

Rotterdamer Str. 7

90451 Nuremberg, Germany

Telephone: +49 (0) 911 - 64200 - 0

Telefax: +49 (0) 911 - 64200 - 90

beco-bermueller.com GE

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